[MartianSquirrel]

It is not legally required, strongly advised by the government. It would go against Section 2 of the Canadian constituion to discriminate on a language basis.

The OQLF asks for companies to use french terminology and tools where possible (the tech sector blatantly ignores it, I've always worked in english, even with french co-workers) and to offer a french translation on signs, menus and documentations in stores.

[freeone3000]

Quebec has a history of using the notwithstanding clause to push through numerous things supposedly prohibited by clause 2. You will absolutely be fined for not having employment documents available in French, or signage with French co-equal. Tech companies usually put in place a do-nothing "francisation plan" and pay any levied fines, but it's a real cost of doing business.